Tooth-brush.



PATENTED APR. 26,1904.;

H.V E. SANDIPORD.

TDOTH BRUSH.

'APPLxoA'rIoN FILED 001.1, 1903..'

f H0 MODEL.

Www/e @M mfom n. c, y.

PatentedkAprl 26, 1904.

rPnrnrrr OFFICE.

HARRY EDWIN SANDIFORI), OF NEW YORK, N. Y.'

-SPECIIEILA'II'IION forming part of Letters Patent No. 758,109, datedApril. 26, 1904.

l Application lefl October l, 1903.

Improvements in Tooth Brushes, of which.

the following is a full, clear, and exact speciiication, reference beinghad to the accom-v panying drawings and to the letters of referencemarked thereon.

The object of my invention is to provide or produce a simple, compact,and eflicient brush with no angles or projecting parts to interfere withits convenient use inthe mouth and so constructed that it will reach andcleanse all the teeth and easily enter between teeth which may beseparated.

To accomplish this object and to secure other and further advantages inthe matters of construction, operation, and use, my improvements involvecertain new and useful arrangements or combinations of parts and detailsof construction, all of which will be herein iirst fully described andthen pointed out in the claims;

In the accompanying drawings, forming part of this specification, Figure1 is aplan or top view, and Fig. 2 a corresponding side eleand C thebristles mounted in thehead.

vation, of a brush constructed and arranged for operation in accordancewith my invention and involving my improvements, the handle being shownas made separate from the head and afterward to be connected therewith.Fig. 3 is a sectional elevation on the line 3 3 0f Fig. 4, on a largerscale than previous figures, showing the brush-head and its handleseparated therefrom. Fig. 4 is a top View corresponding with. Fig. 3.Fig. 5 is a top view of the brush-head made without a handle. Fig. 6 isa top view of a modication showing the brush head and handle made in onepiece.

In all the figures like letters of reference Wherever they occurindicate corresponding parts.

A is the brush-head, B the handle therefor, The head is made in the formof a fiat complete annulus or ring of short diameter, so that itTOOTH-BRUSH.

semina. 175,272. (naman.)

may be conveniently used in any part of the mouth. The bristles, asshown, are mounted in double rows, so as to aford abundant cleaningcapacity, and they are secured in the head in any preferred manner. Bypreference the handle is made separate from Athe head and easilydetachable, as indicatedrrat Figs. l, 2, and 3. The connection betweenthese two parts may be made in any suitable manner; but I prefer toemploy a screw-joint. For this I supply the .head with a threaded socketa and the handle with a screw which may be easily turned into or out ofthe socket, as may be required. This makes a simple and feliable jointand answers all the purposes of onemore complicated.

As shown, the brush has an unobstructed opening through its centralpart. This enables the brush to. be applied to any or all portions ofthe teeth and especially over or around and between teeth which may bestanding alone or around and between crowns or other work which may belocated in the mouth.

By making the handle removable the brush is rendered capable of beingtwisted or turned in the mouth by the application of the ngers, as maybe desired when there are dicult places to reach. p

Obviously the ring-shaped brush might be made without a handle, asindicated at A in Fig. 5, and again it might be made with a permanenthandle, as indicated at B in Fig. 6. These modifications are entirelywithin the scope of my invention.

The ring-shaped brush in addition to the advantages above indicatedpossesses the further advantages that it confines a'portion of thecleansing liquid to the central part, s0 that the liquid may be employedto better advantage than in other forms, and it presents a smooth andunbroken part always for contact with the mouth, the same when the brushis held in one position as in another. The unobstructed central openingconstitutes a kind of a reservoir in which the cleansing liquid isretained in a degree during the use .of the. brush, and it furtheraffords facilities for thoroughly cleaning and drying the brush.

Having now fully described my invention,

IOO

what I claim as new therein, and' desire to secure by Letters Patent,is-M 1. A tooth-brush made in annular or ring form and having thecentral unobstructed passage-Way through it and having its bristlesextending parallel With the peripheral face of said ring, substantiallyas and for the purposes set forth.

2. In combination With an annular toothbrush head having a centralunobstructed passage through it and a threaded socket, formed in itsperiphery, and'bristles extending from one face of the head parallelwith its axial line, of a removable handle provided With a screw to tSaid socket, substantially as shown and I5 described.

In testimony thatI claim the invention above set forth I alix mysignature in presence of two Witnesses.

H. EDWIN SANDIFORD.

